Phosphine precursor for preparing quantum dot and quantum dot prepared therefrom

Abstract

The present invention relates to a phosphine precursor for the preparation of a quantum dot, and a quantum dot prepared therefrom. Using the phosphine precursor for the preparation of a quantum dot of the present invention, a quantum dot with improved luminous efficiency and higher luminous color purity can be provided.

What is claimed is: 
     
       1. A phosphine precursor composition for preparation of a quantum dot, comprising a phosphine precursor selected from the group consisting of the following Structural Formulas, and tris(trimethylsilyl)phosphine at a mole ratio of 1:1: 
       
         
           
           
               
               
           
         
         
           
           
               
               
           
         
       
     
     
       2. A method for preparing the phosphine precursor of  claim 1 , comprising the steps of:
 preparing a mixture of a silyl triflate compound, halogenated hydrocarbon, and tertiary amine; and 
 adding phosphine to the mixture. 
 
     
     
       3. A method for preparing the phosphine precursor of  claim 1 , comprising the steps of:
 preparing a mixture of a primary phosphine compound, halogenated hydrocarbon, and tertiary amine; and 
 adding a silyl triflate compound to the mixture. 
 
     
     
       4. The method for preparing the phosphine precursor according to  claim 2 , wherein the halogenated hydrocarbon is dichloromethane, and the tertiary amine is trimethylamine.